Friction-clutch mechanism



Sept. l, 1925.

M. R. KARGE ET AL vPalatino@ CLUTCH `MECHANISM Filed Novl- 27. 1920 2 Sheets-Sheet 2 MZWQZM. l

INVENTORS county ofOswego and State of New York,I

` connecting Vtransmitting means. The connecti Patented 1, `1925.

UNITEDsTATss PATENT OFFICE.

mm l. m63 LII). im 0. 00ml., 0l' Enomm YORK.

mTIOI-OL'UTOB Toallwhomtmaycomcrm.

Be it known that we, Maxwnnn R. Kauen and FraNAN O. Comm., citizens of the United States and the Republic of Cuba, re. spectively, and residents of Phoenix, in the have invented a certain new and useful Friction-Clutch Mechanism, of which the following is a specification.

This invention has for its object a friction clutch mechanism in which the driving to ue is transmitted to the driven element or aft through a flexible power transmitting element as a coiled spring which is prognessively brought into operation during the or' friction clutching of the driven element to the driving element, which clutch mechanism is articularly simple in construction and hig y eilicient and durable in use. The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like` characters designate corresponding parts in all theviews.

' Figure 1 is alongitudinal sectional view, partly in elevation, of a preferable form of my utch mechanism.

Figure 2 is a sectional view on line 2 2, Fi 1, looking to the left.

is friction clutch mechanism comprises generally, driving and driven members, a couplin y connecting said members, headers mounted on said elements respectively, flexible motion transmitting means between the headers and being fixed to one of the headers and normally disconnected from the other header and mea-ns for frictionally connecting thclatter header to the ilexiblepower means is `here shown as manually controll 1 and 2 arerespectively, the driving and:l

driven elements which for convenience are referred to throughout the specification and claims as driving and driyen shaftsas they are shafts in 'most constructions.

3 and 4 are respectively the headers of the coupling these parts being also called headers or convenience.

- The headers 3,14 are secured-to the shafts 1 and 2 to rotate therewith in any suitable 'mannen and the header 4 is connected to the driven shaft 2 by a sliding connection to permit ak sliding movement ofthe shaft 2 when the coupling is applied to the drive shaft ofthe motor vehic e.

In' this embodiment of our invention, there are shown two flexible power transmitting elements, lone being connected to the driving header 3 and normally disconnected from the driven header 4 and the other being secured to the driven header 4 and vnormally disconnected from. the driving these wer transmitting elements being an ra substantially concentric with the axis -of t e coupling and one element being ar- .ranged outside of and enclosing the other and the outer being arranged to contract on the inner usually suitable wearing arts between the ements. p Although we ave shown, two flexible power transmitting elements one only, in some instances may be employe 5 and 6 designate respectively, the flexible wer transmltting elements, the element 5 ng in the form of a torsion spring of the form shown in the Patent No. 1,387,726,

August 16, 1921, of Maxwell R. Karge, the

coil 5 at one end being reduced in thickness and secured in the header 3 in any well known manner and the other end of the coil Vextending in the header 4, but being unsecured thereto.

A coiled element 7 is arranged within the element 5 with its end-coils 8 between the end coils of the spring 5 and a sleeve 9 within the header 3, this sleeve being secured to the header 'and rotatable therewith. The end coils 8 of the element 7 and'alsothe voverlying endcoils of the spring 5 are secured to the header 3 by shrinking the angular wall of the header on the perlpheriesof the coils of the s ring 5, hence com ressin these coils and t e coils 8 of the e ement. onto the sleeve 9. Suitable clearance 10 is provided between the spring 5 and the element 7 to permit a limited contracting action of the spring 5.

.This coiled element 7 is securedto one header as 3 and is Anot necessaril a spring but may act merely as a mandre on which the spring 5 contracts, but Y is preferably coiled for permitting the coupling to have a universal joint movement. v

The flexible power transmitting element 6 is secured at one end to the header t in any suitable manner, it being preferably `formed integral therewith or welded thereto and encloses the spring 5 and the periphery of no header 3,

the driven header and movable rela-` y tively thereof, and means for effecting movement of said part relatively to the driven header, substantially as and for the purpose specified.

4. In a friction clutch mechanism, the combinationyof driving and driven shafts, headers mounted respectively'on the shafts, a coiled torsion sprin fixen to the driving header, and extending into and being discon- IIiected from the drlven header, a second coiled torsion spring `fixed to the driven header and enclosing the former spring and the driving header, a motion transmitting part mounted to rotate relatively to the driving shaft and being connected to one epd of `the 17th .the torsional-ring associated with thedriven header, and means for effecting movement of said part relatively to the driven header, said means including an expander mounted on and slidable len hwise ofthe driving shaft and coacting wit said part, substantially as and for the purpose set forth.

In testimony whereof, we have hereunto signed our names hereto at S racuse, in the county of Onondaga, and tate of New York, on the 30th day of October, 1920, and day of September, 1920, respec-l tively.

I 'MAXWELL mKARGE. FERNAN o. QONILL. 

